Re: ACPI call for testing

On Mon November 9 2009 16:18:26 Joerg Sonnenberger wrote:
> Hi all,
> attached is a small but important patch for the ACPI subsystem.
> The patch is known to fix interrupt routing issues on a number of
> systems. There is a chance that it in fact fixes many of the outstanding
> issues in this area. Typically signs are network devices always timing
> out or a system load of 100% on an otherwise idle system with interrupt
> counters racing up.
>
> Please give the patch a try and report any regressions to an unpatched
> kernel.
I tested the patch on a Thinkpad T500 (today's current amd64). The result is
a slew of error messages from the iwn driver later followed by a hung system
(cannot even get to ddb). Unfortunately, I have no more information as the
interesting parts had scrolled off the screen. I'm attaching dmesg from the
working kernel.
Regards,
Sverre
PS I believe there is an issue with firmware load failure (possibly localized
to the iwn driver) that causes the system to later hang or panic, so your
patch may not be responsible for the hang.